The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 04, 1983
Filed:
Aug. 18, 1981
Applicant:
Inventors:
Masayuki Shiratori, Kawasaki, JP;
Masaki Katsura, Yososuka, JP;
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
422 90 ; 324 715 ; 338225 ; 422 98 ; 436126 ;
Abstract
Freon gas detecting element for detecting the presence of freon gas with of a pair of electrodes, a gas detecting body made of a metal oxide semiconductor and covering the pair of electrodes, and a catalytic layer coated on the gas detecting body. The catalyst layer is made of at least one element selected from the group consisting of V, Mo and W supported by one catalyst carrier selected from the group consisting of Al.sub.2 O.sub.3, SiO.sub.2, and SiO.sub. 2 - Al.sub.2 O.sub.3.